A method for archiving a file that has multiple file parts stored on multiple object storage devices of a computer system includes the steps of saving the file parts on one or more archive devices, allowing one or more changes to be made to the file during the saving step, and applying at least one of the changes made during the saving step to one of the file parts stored on a respective object storage device. Furthermore, the method is performed such that the file parts saved on the one or more archive devices do not include the one or more changes made to the file during the saving step.